Fertilisation & Gamete Production in Plants Biology Revision Slides - WJEC BY5 Sexual reproduction in plants

Fertilisation & Gamete Production in Plants Biology Revision Slides - WJEC BY5 Sexual reproduction in plants

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Biology Revision Presentation

Gamete Production in
plants

Page 2

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The male
gamete of the

Page 3

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plant is within
the pollen
grain.

Page 4

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The pollen grain
is formed in the

Page 5

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anther where
meiosis takes
place to form
haploid pollen
grains.

Page 6

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The pollen grain
itself consists of

Page 7

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a tough outer
wall 1, a
generative
nucleus and a
pollen tube
nucleus.
1 which makes it resistant to
desiccation.

Page 8

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Page 9

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When the pollen grains are
mature the anther dries out.
Shortly after this dehiscence
occurs - the pollen sacs curl

Page 10

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away from the pollen grains
releasing them.
These are then carried away
either by the wind or by
insects or through one of the
other pollination
mechanisms.

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Pages in this set

Page 1

Preview of page 1
Biology Revision Presentation

Gamete Production in
plants

Page 2

Preview of page 2
The male
gamete of the

Page 3

Preview of page 3
plant is within
the pollen
grain.

Page 4

Preview of page 4
The pollen grain
is formed in the

Page 5

Preview of page 5
anther where
meiosis takes
place to form
haploid pollen
grains.

Page 6

Preview of page 6
The pollen grain
itself consists of

Page 7

Preview of page 7
a tough outer
wall 1, a
generative
nucleus and a
pollen tube
nucleus.
1 which makes it resistant to
desiccation.

Page 8

Preview of page 8

Page 9

Preview of page 9
When the pollen grains are
mature the anther dries out.
Shortly after this dehiscence
occurs - the pollen sacs curl

Page 10

Preview of page 10
away from the pollen grains
releasing them.
These are then carried away
either by the wind or by
insects or through one of the
other pollination
mechanisms.

Comments

No comments have yet been made